Bobbin-gear.



E. E. BLAKE.

BOBBIN GEAR.

APPLICATION mum MAY 27, 1914.

1,1 19,229, Patented Dec. 1, 1914.

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ASSIGNOR TO SACO-LOWELL EDMUNDE. BLAKE, OF SACO, MAINE,

shoes, or BOSTON,

MASSACHUSETTS,.A CORPORATION OF MASSACHUSETTS.

BOBBIN-GEAR.

Specification of Letters Patent.

Patented Dec. 1 1914.

Application filed May 27, 1914. Serial No. 841,363.

To all whom it may concern Be it known that I, EDMUND E. BLAKE, of Saco, in the county of York and State of Maine, a citizen of the invented a new and useful Improvement in Bobbin-Gears, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this plaining its nature.

The present invention relates to an. improvement in bobbin gears used especially in connection with fly frames.

The object of the invention is to provide a gear that can be easily and economically manufactured; that will possess lightness in running and which will provide both a support and driving means for the bobbin and a very satisfactory oil chamber.

Figure 1 is a side elevation of a bobbin gear embodying my invention and is shown extends and. which carries a gear 4 by which is shown. Fig. 2 is the same as Fig. 1 excepting that the gear is shown in section. Fig. 3 is a view mainly in side elevation but partly in section of a detail of construction to which reference will hereinafter be made.

1 represents the bobbin gear, 2 the bolster upon which the gear is mounted to rotate thereon in the usual manner.

The bobbin gear 1 comprises a cylindrical body or sleeve 3 through which the bolster extends and which carries a gear 4 by which it may be rotated, both sleeve and gear being preferably integral parts.

Mounted upon the sleeve above the gear 4 is a hollow annular casing 5 which provides both a support for the bobbin and an oil chamber from which oil is directed into the joint between the interior surface of the sleeve and the bolster.

The casing 5 comprises a boxlike structure or receptacle consisting of flanged parts 6 and 7, respectively, which are made of thin metal bent or otherwise formed to cooperate with one another and the sleeve as follows: The under part 6 forming the lower portion of the casinghas an outer edge or rim 8, a bottom 9 and an interior flange-forming collar 10 which fits snugly around the sleeve forming a tight joint and thereby assisting in the support of the entire member. The part or member 6 is otherwise supported upon the sleeve by resting I against a shoulder 11 formed thereon, the

United States, have specification, in exsleeve being reduced in diameter in. that part encircled by the casing in order to form this shoulder. The upper part or member 7 of the casing forms practically a cover to the part 6 and consists of an outer edge or rim 12 which laps over the edge 8 of the part 6. The part or member 7 consists further of a portion 13 forming the top of the casing and a flange-forming collar 14 which fits snugly around the sleeve forming a tight joint.

The bobbin rests upon the top of the easing thus formed, the casing being provided with a projection 15 which extends upwardly from the top thereof to fit into any one of the slots with which the bobbin is provided. This projection 15 consists of a piece of sheet metal bent back upon itself and passed through the top portion 13 of the casing, the ends 16 of the piece thence being bent outwardly and secured in any suitable manner to the interior side of the said portion 13 of the casing as shown in Fig. 3.

The chamber of the casing forms a receptacle for containing oil, entrance being had thereto by an opening 17 formed in the top portion 13 of the casing. Oil is admitted from the chamber of the casing to the bearing between the interior surface of the sleeve and the side of the bolster by an opening 18 in the sleeve and which extends from the chamber of the casing at a point between the flauged collars 10 and 14, respectively, which embrace the sleeve as aforesaid. It is preferred that the chamber of the casing be packed with some filling or absorbent material 19 which may be kept saturated with oil and thereby prevent an undue amount of oil being supplied to the bearing but just such an amount as will keep the bearing properly lubricatec.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States 1. A bobbin gear comprising a sleeve having a gear thereon, and a hollow casing mounted upon said sleeve above said gear, the top of which casing presents a bearing for the bobbin and the interior of said casing an oil chamber.

2. A bobbin gear comprising a sleeve having a gear thereon, and a hollow casing mounted upon said sleeve above said gear, said casing consisting of a boxlike structure presenting a top bearing surface for the form a'closed annular chamber around said bobbin and the interior thereof an oil chamsleeve above said gear, said casing presentber, said casing having an opening therein ing a top surface forming a bearing for the 15 to form an inlet through which oil may be bobbin, said casing having also an opening 5 introduced into said chamber, and said therein through which oil may be introsleeve having an opening therethrough and duced into the chamber thereof and said connecting With said chamber of the casing sleeve having an opening through thesame to form an outlet therefrom. out of said cha ber. I 3. A bobbin gear comprising a sleeve havv v ,j, 7-; EDMUND E. BLAKE 10 ing a gear thereon, a casi g consisting of Witnesses:

overlapping flanged members cooperating ANNIE T; DUNN," With one another and With said sleeve to HOMER T. VVATERHOUSE.

Gopiea of this patent may be obtained for five cents each, by addressing the Commissioner of Eatcnts. Washington. D. G. 

